Two‐dimensional NMR spectra of hydrolysable tannins which form equilibrium mixtures

Takashi Yoshida, Tsutomu Hatano, Takuo Okuda

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


The structures of hydrolysable tannins, each existing as an equilibrium mixture due to tautomerization at the sugar core(s) or at the dehydrohexahydroxydiphenoyl group (five‐ and six‐membered hemiacetal forms) in the molecule, were elucidated by NMR, employing 2D NMR techniques (COSY, NOESY, 1H13C long‐range COSY, etc.), on derivatives which avoid the spectral complication due to equilibration.

Original languageEnglish
Pages (from-to)S46-S55
JournalMagnetic Resonance in Chemistry
Issue number13
Publication statusPublished - 1992


  • Anomer
  • Camelliatannin H
  • Coriariin H
  • COSY
  • Euphorbin C
  • Heteronuclear long‐range
  • Hydrolysable tannin
  • Oenothein B
  • Oligomeric hydrolysable tannin
  • Tannin

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)


Dive into the research topics of 'Two‐dimensional NMR spectra of hydrolysable tannins which form equilibrium mixtures'. Together they form a unique fingerprint.

Cite this